An expedition through Kipahulu Valley was organized to evaluate the frequenly implied negative environmental impact of the 1967 Kipahulu Valley Expedition. On the 1976 expedition four people trekked down through the valley ...

Three ferns and 123 flowering plants are recorded from Pu'uhonua o Honaunau National Park. Ninety two (74%) are alien (introduced after 1778). Six species - common sandbur, fountaingrass, lantana, nutgrass, puncture vine, ...